1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.documentlibrary.util.comparator;
24  
25  import com.liferay.portal.kernel.util.OrderByComparator;
26  import com.liferay.portlet.documentlibrary.model.DLFileEntry;
27  
28  /**
29   * <a href="FileEntryReadCountComparator.java.html"><b><i>View Source</i></b>
30   * </a>
31   *
32   * @author Brian Wing Shun Chan
33   */
34  public class FileEntryReadCountComparator extends OrderByComparator {
35  
36      public static String ORDER_BY_ASC = "readCount ASC";
37  
38      public static String ORDER_BY_DESC = "readCount DESC";
39  
40      public static String[] ORDER_BY_FIELDS = {"readCount"};
41  
42      public FileEntryReadCountComparator() {
43          this(false);
44      }
45  
46      public FileEntryReadCountComparator(boolean asc) {
47          _asc = asc;
48      }
49  
50      public int compare(Object obj1, Object obj2) {
51          DLFileEntry fileEntry1 = (DLFileEntry)obj1;
52          DLFileEntry fileEntry2 = (DLFileEntry)obj2;
53  
54          int value = 0;
55  
56          if (fileEntry1.getReadCount() < fileEntry2.getReadCount()) {
57              value = -1;
58          }
59          else if (fileEntry1.getReadCount() > fileEntry2.getReadCount()) {
60              value = 1;
61          }
62  
63          if (_asc) {
64              return value;
65          }
66          else {
67              return -value;
68          }
69      }
70  
71      public String getOrderBy() {
72          if (_asc) {
73              return ORDER_BY_ASC;
74          }
75          else {
76              return ORDER_BY_DESC;
77          }
78      }
79  
80      public String[] getOrderByFields() {
81          return ORDER_BY_FIELDS;
82      }
83  
84      public boolean isAscending() {
85          return _asc;
86      }
87  
88      private boolean _asc;
89  
90  }